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Remediation

Item: Remediation
Author: Tamzen Macbeth

We restore environments and protect communities by delivering innovative, science-based solutions that reduce risk and lifecycle costs. Using advanced technologies and adaptive strategies, we help clients achieve resilient, long-term results.

Practice Lead

Tamzen Macbeth

How we support your remediation goals

Two lab technicians work with a glovebox in a laboratory, surrounded by scientific equipment and bottles.

Construction workers in hard hats and safety vests discussing site plans.

Two workers with helmets control a drone flying over a grassy area near water. Orange traffic cones line the road.

Whether responding to regulatory requirements or taking proactive steps to protect public health and the environment, our experts support every stage of the remediation process—from flask to field.

Comprehensive media expertise

We boast deep expertise in all facets of remediation—groundwater, soil, surface water and sediments—and deliver the right solution for every challenge.

Decades of successful delivery

With decades restoring mining, sediment and groundwater sites, we've had a hand in some of the nation’s most complex Superfund and CERCLA projects.

Science is in our DNA

Our full-service laboratories in Bellevue, Boston and Denver support science-based, site-specific solutions with treatability, geotechnical and bench testing.

Innovative, data-driven design

As experts in resilient remedies and conceptual site models, we use advanced analytics, visualization and decision-support tools to deliver adaptive solutions.

Remediation & renewal on L.A.'s final frontier

CDM Smith and L.A. developers rejuvenate one of the county's last remaining vacant parcels, paving the way for the hottest newcomer to "Silicon Beach."

Featured remediation projects

Always looking forward, we prepare today for the problems we may face tomorrow, guiding our clients through uncertainty and forging a path towards a more promising future.

View All Environment Projects

Scenic view of Portland Harbor with ships docked, surrounded by greenery and Mount Hood in the background.

Portland, Oregon

Remediation of a Superfund mega site

Our team is collaborating with federal agencies, tribal government and private partners to remediate Portland Harbor and the Willamette River.

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Sunset over a waterway lined with trees and vegetation, reflecting the sky and trees on the water's surface.

New Orleans, Louisiana

Ecosystem restoration for Louisiana’s wetlands

The CDM Smith team and Jean Lafitte National Park and Preserve are working together to restore natural hydrology and protect Louisiana's freshwater wetland ecosystems.

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bridge and city buildings with a purple blue sky

Tacoma, Washington

Rethinking Superfund remediation

CDM Smith supported USEPA in meeting ambitious cleanup goals at the Well 12A Superfund site, an area contaminated with DNAPLs that had baffled scientists and engineers for decades.

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Our most successful environmental projects are driven by collaborative, integrated teams that bring together experts from diverse disciplines to achieve shared goals.

Tamzen Macbeth, PhD, PE, BCEE

Environmental Engineer

Tamzen is a remediation expert specializing in innovative, cost-effective strategies for cleaning up hazardous waste sites, from design to implementation.

Related resources

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Large water treatment pond at a mining site with hills, trees, and a brown building in the background.

Insight

Combining remedies for complex Superfund sites

To achieve the remedial goals at complex Superfund sites, a multi-component treatment strategy that includes a combination of technologies may be required.

Industrial drain pipes releasing foamy water into a polluted stream.

Insight

6 major takeaways from PFOA/PFOS CERCLA designation

Under CERCLA, the federal government can hold polluters accountable for releases of hazardous substances that could endanger public health and the environment.

Abstract digital network with glowing blue and green nodes and lines.

On-demand webinar

Harnessing advanced data analytics and data science for PFAS remediation

From sourcing and linking data to visualizing contaminant pathways, this webinar will demonstrate how modern tools are reshaping conceptual site models and improving predictions of PFAS migration.

Launch Webinar

Related practices

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Climate Resilience

We can no longer rely on the past to prepare for the future. Our teams work across water, transportation, environment and infrastructure to implement right-size solutions backed by climate science.

Emerging Contaminants

Our engineers and scientists are working tirelessly to solve the world’s most complex contamination challenges. Together, we’ll find solutions to the latest threats to public health.

Drinking Water

Whether your goals are to unlock new sources, enhance the quality and reliability of the supplies you have or upgrade the technologies you use, we can help you achieve water supply innovation.

Water Reclamation

Whether your goal is to meet your permit conditions or to build a net-zero facility, we’ll work with you to find the right solutions.

Program Management

CDM Smith’s program management team is bringing complexity under control by building strong, enduring relationships.

Geotechnical, Tunnels and Dams

We offer a full range of traditional and specialty geotechnical services with an emphasis on managing risk and delivering innovative solutions to our clients’ complex projects.

Ready to take the next steps?

We love collaborating with passionate individuals and organizations. If you want to talk about potential projects, reach out to our experts. If you're interested in joining our team, check our careers page for open positions or internships.

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